|Sevier River (Seve'uu (Paiute))|
|"Rio Severo" (wild river)
1776: El Rio de Santa Isabel
c1826: Ashley River
|Part of||Escalante-Sevier subregion|
|- left||Beaver River|
|- right||East Fork, San Pitch|
|Length||383 mi (616 km) |
|Basin||11,574 sq mi (29,977 km2) |
The Sevier River //, extending 383 miles (616 km), is the longest Utah river entirely in the state and drains an extended chain of mountain farming valleys to the intermittent Sevier Lake. The Upper Sevier is used extensively for irrigation, and consequently Sevier Lake is now essentially dry.
The Sevier River Water Users Association subdivides the river into four mainstream sections: Upper, Central, Gunnison and Lower.
Upper: The Sevier headwaters are in northwestern Kane County along the western side of the Paunsaugunt Plateau, and it flows northward into Garfield County through an extended valley beside the plateau past Hatch and Panguitch. Along the Garfield-Piute county line, the Sevier descends through the narrow 5 mi (8 km) Circleville Canyon, emerging into Circle Valley at Circleville. It then flows northeast towards Junction, where it receives the East Fork from the east and passes through the Piute Reservoir.
Gunnison and Lower: After the San Pitch confluence and ~20 mi (32 km) southwest of Nephi, the river flows west around the north end of the Canyon Mountains into the Sevier Desert, then southwest past Delta and into Sevier Lake in central Millard County, along the western side of the Cricket Mountains. It is impounded in southwestern Juab County at the north end of the valley to form the 20-mi (32 km) long Sevier Bridge Reservoir. DMAD reservoir and Gunnison Bend reservoirs are near Delta with Sevier's water. DMAD water goes to the Intermountain Power Project's coal-fired plant located 9 miles west of US-6, north of Delta.
The Dominguez-Escalante Expedition crossed the river in 1776.
The Sevier River Water Users Association has installed solar-powered monitoring equipment, the Real-time Telemetry System, which reports on river flows, canal diversion flows, reservoir elevations and weather each hour. See http://www.SevierRiver.org.
- Van Cott, John Waldemar (1991) . Utah Place Names: A Comprehensive Guide to the Origins of Geographic Names. ISBN 0-87480-345-4.
- "The National Map". U.S. Geological Survey. Retrieved Feb 16, 2011.
- "Boundary Descriptions and Names of Regions, Subregions, Accounting Units and Cataloging Units". USGS.gov. Retrieved 2010-06-06.
- "Sevier River Water Users Association". Retrieved 2010-06-06.